Patents by Inventor Shinji Wakamatsu
Shinji Wakamatsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10873226Abstract: A rotary electric machine includes an annular stator, an inner rotor, an outer rotor and a toroidal coil. The annular stator includes inner teeth protruding radially inward and outer teeth protruding radially outward. The inner rotor faces a radially inner side of the annular stator. The outer rotor faces a radially outer side of the annular stator. The toroidal coils are arranged in each inner slot between any adjacent two of the inner teeth and a corresponding one outer slot between adjacent two of the outer teeth. The total number of the plurality of outer slots is larger than the total number of the plurality of inner slots. The number of the coils arranged in all the outer slots is larger than or equal to the number of the coils arranged in all the inner slots.Type: GrantFiled: January 25, 2018Date of Patent: December 22, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masafumi Namba, Shinya Urata, Hideo Nakai, Hiroyuki Hattori, Shinji Wakamatsu
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Patent number: 10404146Abstract: A rotary electric machine includes: a stator including a stator core and a stator coil wound around the stator core; and an annular outer rotor including an outer core disposed around an outer periphery of the stator and a plurality of outer magnets arranged at intervals in a circumferential direction, in which the stator core has an annular yoke and a plurality of outer teeth protruding radially outward from an outer periphery of the yoke, the outer magnets are magnetized in the circumferential direction such that magnetization directions of the outer magnets adjacent to each other in the circumferential direction are opposite to each other in the circumferential direction, and a circumferential distance of a gap between the outer magnets adjacent to each other is 1.5 times or more a disposition pitch in the circumferential direction of the outer teeth.Type: GrantFiled: November 6, 2017Date of Patent: September 3, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Hattori, Shinji Wakamatsu, Shinya Urata
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Publication number: 20180219439Abstract: A rotary electric machine includes an annular stator, an inner rotor, an outer rotor and a toroidal coil. The annular stator includes inner teeth protruding radially inward and outer teeth protruding radially outward. The inner rotor faces a radially inner side of the annular stator. The outer rotor faces a radially outer side of the annular stator. The toroidal coils are arranged in each inner slot between any adjacent two of the inner teeth and a corresponding one outer slot between adjacent two of the outer teeth. The total number of the plurality of outer slots is larger than the total number of the plurality of inner slots. The number of the coils arranged in all the outer slots is larger than or equal to the number of the coils arranged in all the inner slots.Type: ApplicationFiled: January 25, 2018Publication date: August 2, 2018Applicant: Toyota Jidosha Kabushiki KaishaInventors: Masafumi Namba, Shinya Urata, Hideo Nakai, Hiroyuki Hattori, Shinji Wakamatsu
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Publication number: 20180159408Abstract: A rotary electric machine includes: a stator including a stator core and a stator coil wound around the stator core; and an annular outer rotor including an outer core disposed around an outer periphery of the stator and a plurality of outer magnets arranged at intervals in a circumferential direction, in which the stator core has an annular yoke and a plurality of outer teeth protruding radially outward from an outer periphery of the yoke, the outer magnets are magnetized in the circumferential direction such that magnetization directions of the outer magnets adjacent to each other in the circumferential direction are opposite to each other in the circumferential direction, and a circumferential distance of a gap between the outer magnets adjacent to each other is 1.5 times or more a disposition pitch in the circumferential direction of the outer teeth.Type: ApplicationFiled: November 6, 2017Publication date: June 7, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki HATTORI, Shinji WAKAMATSU, Shinya URATA
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Publication number: 20160181960Abstract: A motor control apparatus controls a motor system including a motor and an inverter that outputs electric power to the motor. The motor control apparatus includes an electronic control unit. The electronic control unit is configured to set a q-axis current value in response to a torque command value, and execute system loss reduction control for controlling a d-axis current value such that system loss, which is the sum of a copper loss, an iron loss and an inverter loss, is smaller than system loss at a time when motor loss, which is the sum of the copper loss and the iron loss, is a minimum. The copper loss, the iron loss and the inverter loss change as a current phase of a current vector changes in a q-d plane.Type: ApplicationFiled: December 17, 2015Publication date: June 23, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki HATTORI, Toshinori OKOCHI, Shinji WAKAMATSU
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Publication number: 20160111922Abstract: A reinforcement component includes a ring part extending in a circumferential direction of a stator, and a plurality of protrusions arranged to be spaced from each other in the circumferential direction of the stator and each protruding beyond the ring part. Each of the protrusions of the reinforcement component is fixed between inner circumferential flanges of insulators adjacent in the circumferential direction of the stator. A plurality of teeth are connected with each other throughout a full circumference of the stator by means of the ring part of the reinforcement component, so that the ring rigidity of the stator can be improved.Type: ApplicationFiled: October 14, 2015Publication date: April 21, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki HATTORI, Shinji WAKAMATSU
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Patent number: 6213456Abstract: A finisher connected to a copying machine produces a bound booklet by inserting papers from the copying machine into a cover with an adhesive layer of a hot-melt adhesive which is coated on the inner surface of near a spine interconnecting a front board and a back board, and heating the cover and a sheaf of papers, and joining them by adhesion. Thus, the series of operations ranging from the preparation of documents through the bookbinding can be facilitated and expedited.Type: GrantFiled: December 31, 1997Date of Patent: April 10, 2001Assignee: Minolta Co., Ltd.Inventors: Ryo Hirano, Kunihiko Kanou, Tadashi Kobayashi, Masahiro Nonoyama, Kazuhiko Nakatsuka, Shinji Wakamatsu, Kazuhito Ozawa
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Patent number: 6102385Abstract: A finisher includes an additional-working tray and a leading edge stopper and trailing edge stopper for aligning folded and unfolded sheets fed into the additional-working tray. The leading edge stopper contacts a leading edge of each sheet when it is fed into the additional-working tray. The trailing edge stopper is movable relative to the additional-working tray in accordance with a sheet length. The trailing edge stopper is adapted to align one or more sheets received in the additional-working tray relative to a discharge direction.Type: GrantFiled: October 7, 1997Date of Patent: August 15, 2000Assignee: Minolta Co., Ltd.Inventors: Shinji Wakamatsu, Norihiko Suzuki
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Patent number: 5905935Abstract: A finisher connected to a digital copying machine includes a folding device for folding output paper into Z shape, a binding device for binding a sheaf of the papers into a preset size, and a control unit that determines whether image property will be affected or not when the images are printed on the A4 size paper, and print on the A3 size paper and fold the A3 paper into the Z-shape if it is determined that the property will be affected. Therefore, even if the original document size is different from the exclusive use cover size, the finisher provides good legibility of the characters printing its output automatically on paper of a proper size matching the exclusive use cover. In other words, good-looking bookbinding can be easily accomplished for documents of varying sizes without manually adjusting enlargement/reduction factors.Type: GrantFiled: January 15, 1998Date of Patent: May 18, 1999Assignee: Minolta Co., Ltd.Inventors: Shinji Wakamatsu, Tadashi Kobayashi, Hiroyuki Yoshikawa
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Patent number: 5836578Abstract: A finisher is provided with a stapling unit which has a staple head and a staple anvil, the staple head and the staple anvil being separated and independently movable to a stapling point. When the staple head which contains staples is detected empty, the staple head goes to a staple cartridge exchange position. When a jam of staples is detected, the staple anvil goes to a retreating position. Also, a light emitting element is provided at the staple head and a light receiving element is provided at the staple anvil. First, the staple head is moved to/stopped at a specified stapling point, and then, the staple anvil is moved. The staple anvil is stopped when the light receiving element receives a light from the light emitting element.Type: GrantFiled: March 21, 1997Date of Patent: November 17, 1998Assignee: Minolta Co., Ltd.Inventors: Ryo Hirano, Yuji Taguchi, Shinji Wakamatsu
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Patent number: 5826158Abstract: A finisher incorporating therein a stapler for accumulating a plurality of sheets and performing a stapling treatment on a bundle of accumulated sheets, comprising first sheet bundle conveying rollers disposed on the upstream side of the stapler relative to the direction of conveyance of the bundle of sheets and formed of a pair of rollers capable of converging toward and diverging from each other, second sheet bundle conveying rollers disposed on the downstream side of the stapler relative to the direction of conveyance of the bundle of sheets and formed of a pair rollers capable of converging toward and diverging from each other, and a sheet end detector disposed near the downstream side of the second sheet bundle conveying rollers and adapted to detect the leading end of the bundle of sheets in the direction of conveyance.Type: GrantFiled: October 8, 1997Date of Patent: October 20, 1998Assignee: Minolta Co., Ltd.Inventors: Ryo Hirano, Shinji Wakamatsu
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Patent number: 5797596Abstract: A finisher comprising a non-sort tray disposed at an uppermost location, a stacking tray for stapling disposed at an intermediate location, and a large-capacity storing tray disposed at a lower location. In a non-sort mode, sheets discharged from a copying machine are first stored in the non-sort tray and, when the non-sort tray is occupied full, subsequent incoming sheets are stored in the storing tray. In a stapling mode, sheets are collected on the stacking tray and, after a stapling operation, they are stored in the storing tray.Type: GrantFiled: April 17, 1996Date of Patent: August 25, 1998Assignee: Minolta Co., Ltd.Inventors: Yuusuke Morigami, Tadashi Kobayashi, Misao Nishikawa, Hiroyuki Yoshikawa, Kazuhito Ozawa, Ryo Hirano, Shinobu Seki, Shinji Wakamatsu
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Patent number: 5769404Abstract: A finishing apparatus comprising a transport section for transporting sheets discharged from a copying machine, a tray for stacking sheets thereon, and a finishing section for transporting a set of collected sheets from the tray and for stapling the sheet set. Folding rollers for folding a sheet in two or centrally folding the sheet are provided in a sheet transport section. Sheets, in a two-folded condition or with a center fold line formed thereon, are discharged onto the tray. Sheets which have been centrally formed with the fold line are subjected to stapling on or along the fold line.Type: GrantFiled: April 17, 1996Date of Patent: June 23, 1998Assignee: Minolta Co., Ltd.Inventors: Kunihiko Kanou, Yuusuke Morigami, Shinobu Seki, Kazuhito Ozawa, Shinji Wakamatsu, Masahiro Nonoyama
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Patent number: 5530416Abstract: An inductor which has a ferrite core and a coil wound around the ferrite core. The ferrite core is coated with borosilicate zinc glass. The ferrite core is produced by: adding a low-temperature-sintered oxidized metal, such as BiO.sub.2 and PbO, and a resin binder to ferrite powder of Mn, Fe, Co, Ni or the like; mixing the materials together; compression molding the mixture; and sintering the molded article in a low temperature.Type: GrantFiled: December 6, 1994Date of Patent: June 25, 1996Assignee: Murata Manufacturing Co., Ltd.Inventors: Shinji Wakamatsu, Tetsuya Morinaga